| 摘要 |
<p>In a combination of a scroll (2) for discharging air and a heat exchanger unit (3) having an air inlet portion (11) for receiving the air from the scroll, the air inlet portion is greater in cross-sectional area than an air discharge port (9) of the scroll. The scroll defines an airflow path (8) for guiding the air. The air is discharged from the airflow path through the air discharge port in a first direction (A1). A diffuser (12) is buried in at least a part of the air inlet portion. The diffuser is equal to a half or less as compared with the air discharge port in a dimension of a second direction (A2) perpendicular to the first direction. It is preferable that the air flow path extends around an axis (A3) perpendicular to the first and the second directions.</p> |
